SMA SC 500HE-20 Maintenance Manua - Manual (Page 17)

SMA Solar Technology AG 5 Maintenance when Voltage is Present
Maintenance Manual SC500-800HE20-WH-en-10 17
5.4 AC Circuit Breaker (Optional)
Figure 4: Design of the AC circuit breaker
Additional maintenance material that is required but not included in the scope of delivery:
☐ A testing device approved by the manufacturer of the AC circuit breaker (e.g. TT1 from ABB).
• Use the testing device to check whether the AC circuit breaker is ready for operation
(instructions are included in the testing device documentation).
• If an error is detected, contact the SMA Service Line.
Item Description
A "On" position
B "Tripped" position
C "Off" position